Motor-vehicle.



"No. 700,950. Patented May 27, I902.

. A. C. KREBS.

MOTOR VEHICLE.

(Applidation filed Aug. 9, 1901.)

(No Model.)

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UNrrn STATES PATENT OFFICE.

ARTHUR CON STANTIN KREBS, OF PARIS, FRANCE, ASSIGNOR TO STE. AME DESANOIENS ETABLISSEMENTS PANHARD ET LEVASSOR, OF PARIS,

FRANCE.

MOTOR-VEHICLE.

SPECIFICATION forming part Of Letters IPatent NO. 700,950, dated May 27,19 02. Application filed August 9, 1901. Serial No. 71,517. (No model.)

To aZZ whom it may concern.-

Be it known that I, ARTHUR CONSTANTIN KREBS, a citizen of the Republicof France, residing in Paris, France, have invented certain new anduseful Improvements Connected with the Mechanism for Change of Speed andDirection of Motion of Motor-Oars, of which the following is aspecification.

It is common in automobiles to provide mechanism for transmitting therotation of a driving-shaft to a pair of driven shafts which operate thedriving-wheels of the vehicle and for transforming the rotation of thedriving shaft into motion of the driven shafts in different directionsand at different speeds and for permitting a different movement of thedriven shafts, so that the wheel on one side of the vehicle may turnfaster than that on the other side in going around corners. The detailsof this mechanism vary considerably in different types of vehicle; butusually the complete mechanism for producing the transmission andchanges of motion is carried in a single casing.

My invention relates to a method of suspending the mechanism describedand the casing thereof from the framing of the vehicle, which avoidswedging of the shafts in their bearings and which permits the easy andrapid removal of the casing carrying the mechanism from the framing ofthe car.

My invention provides also otherimprovements, as hereinafter specified.

The improved construction is shown on the accompanying drawings, inwhich- Figure 1 shows a sectional side elevation, Fig. 2 a plan, andFig. 3 a part-sectional end view, of the casing and mechanism detached.

The framing of the car preferably comprises longitudinal members A,connected by means of one or more cross-bars B and stiffened by obliqueangle-irons r and s.

a is a casing or box containing the mechanism for changing the speed anddirection of motion.

1) is the driven shaft connected to the motor, and c is the upper shaftof the mechananism for changing the speed, and d is the shaft of themechanism for changing the direction of motion.

At e is indicated a differential gear, which may be of any suitablestyle and which permits the driven shafts fand g to rotate at differentspeeds as the vehicle turns a corner, the shafts fg being extendedoutside and carrying the pitch-wheels h 'i of driving-chains, the shaftsbeing supported in bearings la and Z, the supports m and n of which areformed in two pieces.

The mechanism for changing the speed and direction and the differentialgear are so well known as not to require illustrationin detail.

The casing a for the change of speed-gear is supported in front at 0.The supports of the bearings for the differential gear fixed to theframing are so arranged, as are also the bearings, as to allow of acertain deformation of the framing without causing any wedging of thebearings upon the shafts of the differential gear. The front support 0is also so arranged as to allow of a certain motion of the casingrelatively to the framing. Under these conditions the casing, suspendedat three points from the framing, will always remain in the planedefined by these three points. The stay-rods from the road-wheel axleare attached to the lugs q of the bearings in and Z, and consequentlyserve as abutments to the shafts of the pitch-wheels h t forwithstanding the tractional strain exercised by the chains of thesewheels. The supports m and n, fixed to the framing, are also connectedto the angle-irons r s of the motorframe. A perfectly strong connectionis thus effected between the motor and the mechanisms for changing thespeed and direction of motion as regards the relative positions of theparts, while allowing of any possible or accidental deformation of theframing of the motor-car without producing any wedging of the transverseshaft fg. The brake t, acting upon the differential gear, has its pointof connection on a pin it, fixed directly to the casing a. In likemanner the pivot a of the disengaging levero is also fixed on thecasing. This method of suspending the casing allows of the simple andrapid disconnection thereof. It suffices after removing the chains anddisconnecting the stay-rods to remove the bolt from the lug 0 to takeoff the caps of the supports m and n and to slide back the casing a.

The lug 0 being disengaged,the casing can be lowered without obstacle.

Having thus described the nature of this invention and the best means Iknow of carrying the same into practical effect, I claim 1.. Thecombination with a motor-car hav ing a motor-shaft, a driven shaft, andintermediate motion-transmitting mechanism, of a brake for saidmechanism, an operating-lever of said brake mounted directly on thecasing of said mechanism, and means for suspending said casing movablyrelatively to the framing of the car, whereby the wedging of the shaftof said mechanism in its bearings is avoided.

2. The combination with a motor-car having a motor-shaft, a drivenshaft, and intermediate motion-transmitting mechanism, of a casing forsaid mechanism, and supports m n and 0 for said mechanism connected tothe framing of the car whereby the easyand rapid removal of themechanism from the framing of the car may be efiected.

3. The combination with a motor-car having a motor-shaft, a drivenshaft, and intermediate motion-transmitting mechanism, of a casing forsaid mechanism, and supports m 'n and 0 for said mechanism connectedflexibly to the framing of the car whereby the easy and rapid removal ofthe mechanism from the framing of the car may be effected, and wherebythe wedging of the shaft of said mechanism in its bearings is avoided.

4. The combination with a motor-car having'a motor-shaft, a drivenshaft, and intermediate motion-transmitting mechanism, of a brake forsaid mechanism, an operating-lever of said brake mounted directly on thecasing of said mechanism, and supports an n and 0 for said mechanismconnected flexibly to the framing of the car whereby the easy and rapidremoval of the mechanism from the framing of the car may be effected,and whereby the wedging of the shaft of said mechanism in its bearingsis avoided. I

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

ARTHUR CONSTANTIN KREBS. \Vitnesses:

JULEs ARMENGAUD, J eune, MAROEL ARMENGAUD, J eune,

